Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
harrisoncontracting.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:20:37 UTC · ↺ Refresh
MX Hostnames
- d338318a.ess.barracudanetworks.com
- d338318b.ess.barracudanetworks.com
MX Priorities
- d338318a.ess.barracudanetworks.com: 10
- d338318b.ess.barracudanetworks.com: 10
A / AAAA Records
- 104.21.59.37 (no PTR)
- 172.67.211.244 (no PTR)
- 2606:4700:3033::6815:3b25 (no PTR)
- 2606:4700:3030::ac43:d3f4 (no PTR)
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
leah.ns.cloudflare.com dns.cloudflare.com 2397618310 10000 2400 604800 1800
Primary NS (mname)
leah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397618310
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lloyd.ns.cloudflare.com
leah.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:spf.ess.barracudanetworks.com -all
- 0ed1fe018ad99e4c52d26d46e3ac4c793219e9e49e
- 193mfjq7s0mpk0skocm5alqb74
- apple-domain-verification=Romh4kn3bJ1TwnfU
- linkedin-site-verification=3ec60e91-fa58-42af-a587-ad711d328237
Full email verification for harrisoncontracting.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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